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Volumn 261, Issue 3-4, 1996, Pages 237-244

Numerical comparison of the band structure and magnetic fluctuations of three-band and generalized t-J models

Author keywords

[No Author keywords available]

Indexed keywords

BAND STRUCTURE; CALCULATIONS; COPPER OXIDES; CORRELATION METHODS; ELECTRON ENERGY LEVELS; MAGNETIC PROPERTIES; MATHEMATICAL MODELS; NUMERICAL METHODS; VECTORS;

EID: 0030145102     PISSN: 09214534     EISSN: None     Source Type: Journal    
DOI: 10.1016/0921-4534(96)00174-8     Document Type: Article
Times cited : (5)

References (43)
  • 4
    • 0000688886 scopus 로고
    • V.J. Emery and G. Reiter, Phys. Rev. B 38 (1988) 11938; R.J. Gooding and V. Elser, Phys. Rev. B 41 (1990) 2557; V.V. Kabanov and A. Vagov, Phys. Rev. B 47 (1993) 12134.
    • (1988) Phys. Rev. B , vol.38 , pp. 11938
    • Emery, V.J.1    Reiter, G.2
  • 5
    • 30244471240 scopus 로고
    • V.J. Emery and G. Reiter, Phys. Rev. B 38 (1988) 11938; R.J. Gooding and V. Elser, Phys. Rev. B 41 (1990) 2557; V.V. Kabanov and A. Vagov, Phys. Rev. B 47 (1993) 12134.
    • (1990) Phys. Rev. B , vol.41 , pp. 2557
    • Gooding, R.J.1    Elser, V.2
  • 6
    • 0346923252 scopus 로고
    • V.J. Emery and G. Reiter, Phys. Rev. B 38 (1988) 11938; R.J. Gooding and V. Elser, Phys. Rev. B 41 (1990) 2557; V.V. Kabanov and A. Vagov, Phys. Rev. B 47 (1993) 12134.
    • (1993) Phys. Rev. B , vol.47 , pp. 12134
    • Kabanov, V.V.1    Vagov, A.2
  • 20
    • 30244465283 scopus 로고    scopus 로고
    • note
    • pd (all in the same direction), avoiding double occupancy at any site. Thus, the effective value of the superexchange interaction J is artificially larger in this cluster.
  • 22
    • 25344434525 scopus 로고
    • C.D. Batista and A.A. Aligia, Phys. Rev. B 48 (1993) 4212; ibid., 49 (1994) 6436 (E).
    • (1994) Phys. Rev. B , vol.49 , pp. 6436
  • 24
    • 30244451443 scopus 로고    scopus 로고
    • note
    • l can be thought as electron creation operators with spin -σ acting on a vacuum with a Zhang-Rice singlet at every site.
  • 26
    • 30244550059 scopus 로고    scopus 로고
    • SISSA preprint condmat/9406121
    • C.D. Batista and A.A. Aligia, SISSA preprint condmat/9406121.
    • Batista, C.D.1    Aligia, A.A.2
  • 28
    • 0346674262 scopus 로고    scopus 로고
    • C.D. Batista, F. Lema and A.A. Aligia, Phys. Rev. B 52 (1995) 6223; F. Lema, C.D. Batista and A.A. Aligia, Physica C 259 (1996) 287.
    • (1996) Physica C , vol.259 , pp. 287
    • Lema, F.1    Batista, C.D.2    Aligia, A.A.3
  • 30
    • 30244511412 scopus 로고    scopus 로고
    • note
    • k|G〉, where |G〉 is the ground state of the undoped system having total spin S = 0. This energy is larger than the ground-state energy of the doped system for several values of k, and as a consequence the quasiparticle band calculated for example from the spectral density of states [27] and Fig. 18(b) of Ref. [28]) is wider than the "band" obtained from ground-state energies (Fig. 18(a) of Ref. [28]). In our case for the parameters of the generalized t-J model which correspond to the spin-fermion model of Ding et al. [7], the quasiparticle band is shifted with respect to the result shown in Figs. 2 to 4 in 0.715 J, and 0.180 J for k=(π, π) and (π, π/2), respectively.
  • 34
    • 18344391827 scopus 로고
    • B.I. Shraiman and E.D. Siggia, Phys. Rev. Lett. 60 (1988) 740; ibid., 61 (1988) 467.
    • (1988) Phys. Rev. Lett. , vol.61 , pp. 467


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.